Organ stop mechanism.



R. HOPE-JONES.

ORGAN STOP MECHANISM. APPLIOATION FILED 1920.27, 1910.

Patented Oct. 28, 1913 a SHEETSSHEET 1.

Uvwemtoaa 1% evades amine/Moo R. HOPE-JONES. ORGAN STOP MECHANISM.

1,077,075. APPLICATION FILED BBQ. 27, 1910. Patented 28g 3 SHEETSSHEET 2.

iYoZerIqve -Ja zzes 'MA mtmegd R. HOPE-JONES:

ORGAN STOP MECHANISM.

. APPLICATION FILED DEO.2T7, 1910. Patented Oct. 28

3 SHEETS-SHEET 3.

ROBERT HDPE-J ONE-3,01 NORTH TONAWAHZJA, 1x YORK,

' ocean sror macnamsir.

Specification of Letters Patent.

llatented Oct. 28, 1913.

Application filed December 27, 1910. Serial 1%; 599,431.

To all whom a"; may concern Be it known that I, Runner Horn-Jones, of North Tonawanda, in the county of Niagara and State of New York, have invented certain new and useful Improvements in Organ Stop Mechanism; and I do hereby declare the following to be a full, clear, andexact description of the same, reference bein; had to the accompanying drawings, forming a part of this specification, and to the referencenumerals marked thereon.

My present invention relates to musical instruments and more particularly tb organs, or instruments having a general con struction similar to that of an organ, and it-hasfor its object to provide in anelectrically operated or 'an a simple and ellicient mechanism for making the circuit connections from the keys of the manual to the pipe operating" means under the control of the organ stops.

1A further object of the invention is to render such mechanism light and compact and easy of manufacture.

To these and other ends the invention con sists in certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out in'the claims at the end of the specification.

In the drawings: Figure 1 is a top plan view of a stop mechanism constructed in accordance with and illustrating: one embodiment or" my invention; Fig. 2 is a side elcvation, partly in vertical section; Fig". 3 is an end elevation, partly in vertical section, and showing, diagrammatically, the circuit connections thereof so far as they include the stop key and the operating mechanism of one of the pipes or tone producing elements; and F g. 4 18 an elevation of the op:

pcsite end of the mechanism, also partly in section, showing, diagrammatically, the circuit connections to the playing keys,

Similar reference numerals throughout the several figures indicate the same parts.

In the present embodiment of the invention l have illustrated the improvements in connection with a wind instrument or pipe organ, and referring" more particularly to l of the drawings A indicates a playine lieyvon an organ manual, the immediate result of the depression of which is to cause a finger B thereon to connect the contacts a, Z- to close the circuit a, d through the coil of an ele tro-magn ii Q i mag et controls the valve that supplies air from a wind chest through a passage E to a bellows 1 and when energized causes the inflation of the bellows 1., a detailed description of the mode of operation being; unnecessary herein. This inflation of the bellows 1 closes an independent circuit for operating an individual pipe or element of the organ, which circuit e will pick up at the wire a in Fig. 3. This Wire is lsto a metal. plate 2, in the present instance, which is secured to the side rail of a suitable guide frame 3 and is electrically connected to a plurality of parallel contact bars or members 4 pivoted at 5 in the side rails. Thebody portions of these bars are oifset or yoke-shaped, as clearly shown in Fig. 8, and extend parallel with their axes of rotation on which they have a limited motion in a given path when a crank arm 6, connected to each and a series of which extend above the respective bellows 1., is turned by the inflation of one oi. the latter. The bars may be returned in any suitable manner upon the collapsing of the bellows, as by the spring s 7.

Extending transversely beneath the contact bars 4 are a plurality oflongitudinally movable slide-bars 8 arranged parallel with each other in a row extending across the guide frame 3. The bars are guided in any suitable manner sliding, in the present instance, between pins 9 in the end rails of the frame and'their ends preferably project beyond these rails, as shown. Each bar is moved longitudinally in one direction by the inflation of a bellows 10 connected to a projecting extension m thereof and is returned by a spring; 1 on the guide frame that engages the opposite end of the bar. The bars, and each of them, are provided with a plurality of upstanding contacts 12 corresponding in number to the pivoted contact bars 4, there being one such contact on each slide bar for each contact bar. When one of the bellows 10 is inflated the slide bar that it actuates is moved to a position in which its contacts 12 are respectively' brought into the paths of movement of the several swinging contact bars 4. The bars marked 8 are in such positions in Fig. 1 while the others are in normal position to which latter all are returned, when the pressure in the bellows is relieved, by the springs 11, as before stated.

Each contact 12 on each slide bar is connected to a wire 1-3 t at issues at 1 into the my pending application for a patent on.

valves, filed July 15, 1910, Serial No. 57 2,082. The rest of the circuit comprises the wire 9, generator H and wire 72 back to wire 6, contact bar 4 and slide bar,contact 12 There-:is a contact 12. on each slide bar for each pipe or unit of the series controlled by thatbar and there is a contact bar 4 for each playing key on the manual.

Therefore, when the bar is operated, all

the circuits are ready to be closed by the actuation of their respective keys.

The means forcontrolling the bellows 10 and. operating the slide bar includes a second circuit energized by the generator H andleading by a wire it through the coil of a magnet J that controls the supply of air between the bellows 10 and a wind chest K. 1 From the magnet it leads by wire 7' through a stop key L back througlrwire is to the generator. The stop key L is in the nature of a switch and when the key is drawn the circuit is established, the slide bar moving lnto operative position. There 1s, of course,

a separate stop key and circuit for each bar,

the drawings showing only a single unit and being only intended to illustrate diagrammatically, and as simply as possible, the general scheme of which the improvements of this invention form a part.

The general operation is the general operation of the ordinary organ. It being understood that there are as many pneumatics 1 provided as there are playing keys on the manual and as many pneumatics 10 as there are stops on that manual, sufiice it to say that when all the stops are drawn the contacts 12 are positioned in such manner that a given playing key on the manual, establishes, through its contact bar 4, circuits for sounding corresponding pipes in each series or stop and when only a portion are drawn only the pipes in those" series are affected.

The bellows 1 for operating the contact bars 4 from the keys are preferably arranged in two rows at the opposite ends of the row of slide bars 8, one row extending along each side rail of the guide frame or longitudinally of the slide bars. Contiguous bellows in each row are arranged'to respectively operate contact bars lying-on opposite "sides of an intermediate contact bar. The latter, though perhaps in alinement with one of such bars is operated by a bellows in the other row that is offset therefrom but opposite its crank arm 6 and in this way compactness is obtained in the arrangement of the parts and the contact .bars 4 (which, in themselves, require very little spacing) may be arranged relatively close together in proportion to the size of their operating bellows 1. I claim as my invention:

1. In electrically operated musical instruments, the combination with a pivoted bar forming an electrical contact extending substantially parallel with its axis of move ment, means for swinging it in a given path and a playing key controlling said means, of a stop mechanism embodying a movable member having a contact movable there-' controlling the bellows, and a stop mechanism embodying a stop key and a movable 'member'controlled thereby having a contact movable with the member into the path of the first mentioned contact, a playing circuit including the contacts and a sound-producing element of the instrument having operating means arranged in said circuit.

3. In electrically operated musical instruments, the combination with an electrical contact member, means for moving it in a given path and a playing key controlling said means, of a stop mechanism embody ing a guide, a longitudinally movable slide bar operating therein, an electrical contact on the slide bar movable therewith into the path of the first mentioned contact, a stop key controlling the slide bar and a playing circuit including the contacts and a soundproducing element of the instrument having operating means arranged in said cir cuit.

4:. In musical instrumei'lts, the combination with a pivoted bar forming an electrical contact extending substantially parallel with its axis of movement, means for rotating it in a given path and a playing key controlling said means, of a stop mec ianism embodying a guide, a longitudinally movable slide bar operating therein transversely of the pivoted bar, an electrical contact on the slide. bar movable therewith-into the path of the first-mentioned contact and formed by aresilient post extending transversely of the pivoted bar, a stop key controlling the slide bar, a playing circuit in- .move it inone direction,

end of the eluding-the contacts-and a sound-producing contact member, means for moving it in a given path and a said means, a guide, a longitudinally movable slide bar operating therein, an electrical contact on the slide bar movable therewith into "and out of the path of the first-mentioned contact, a bellows at one end of the guide cooperating with the adjacent end of the bar to a stop key cona spring at'the other guide cooperating with the opposite end of the bar to return the same, a playing circuit including thecontacts and a sound producing element of the instrument having operating means arranged in said circuit.

6. In electrically operated musical instruplaylng key controlling trolling the bellows,

ments, the combination with guides and a plurality of longitudinally movable slide bars operating therein, of a pivoted yokeshaped contact member mounted to extend transversely across all the bars and to swing in a given path longitudinally thereof, a playing key controlling the yoke shaped member, a contact member projecting from each bar and movable therewith into the pathof the first-mentioned contact member, a stop key controlling each slide bar, a pluof a stop-mechanism embodying rality of playing circuits each including the yoke shaped member and one of the contacts on the slide bars, and a sound producing element ofthe instrument having operating means arranged in each circuit.

7. In a stop mechanism for electrically operated musical instruments, the combination with a plurality of longitudinally movable slide bars arranged side by side in a row, of a plurality of parallel contact members extending transversely across said bars and arranged to move each ina given path longitudinally thereof, a plurality of contact members on each slide bar movable therewith into and out of the paths of the first mentioned contact members, respectively, stops controlling the slide bars, a plurality of circuits each including a contact on one bar and one of the firstmen tioned contact members, a plurality of sound producing elements each having operating means in one of said circuits, two rows of bellows, said rows being disposed longitudinally of the slide bars at each end of the row of slide bars, each bellows being arranged to operate one of the contact members, and a playing key controlling each bellows, adjacent contact members being operated by bellows respectively arranged, one in each row of bellows.

' ROBERT HOPE-J ONES.

' Witnesses AUSTIN D. M. GIBSON, MARGARET K. BARTON.

Oppie: of 'this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' 'Washingtond). 0." j 

